CAS is rolling out a new preliminary exam
http://www.casact.org/cms/pdf/Syllabus_Changes_Fall2015_Armstrong_1.pdf
The syllabus is already posted and it looks like it will cover some good information.
Exam S长达四个小时,包含了之前Exam LC、 Exam ST 还有 VEE Stats的内容。如果不想考Exam S,必须在今年九月前完成LC或者ST的一项,这样在明年九月前完成LC+ST+VEE可以抵掉Exam S。详情请看上面的文章链接。